Kelly Kay is a naturally large breasted model from Liverpool. She was discovered by the Daily Sport in 2004, and began her career in magazines in October 2004. She models with the Score Group, and is not published by UK newspapers. In that respect she is similar to Nicole Peters.

She made a DVD in 2004 entitled "Alone with Kelly Kay" where she performed sexual acts. This DVD is notable because her mother, Jane Kay, also appeared topless in it.